Release new version 2.4.7

= 2.4.7 - 2021/07/19 =
* This maintenance release has code tweaks for WordPress 5.8 compatibility plus Security hardening.
* Tweak - Test for lazy load work correctly with  new WebP extension that WordPress 5.8 support
* Tweak - Test for compatibility with WordPress 5.8
* Security - Add more variable, options and html escaping
* Security - Get variable via name instead of use extract

Author: alextuan

a3-lazy-load.php

@@ -2,11 +2,11 @@
 /*
 Plugin Name: a3 Lazy Load
 Description: Speed up your site and enhance frontend user's visual experience in PC's, Tablets and mobile with a3 Lazy Load.
-Version: 2.4.6
+Version: 2.4.7
 Author: a3rev Software
 Author URI: https://a3rev.com/
 Requires at least: 5.0
-Tested up to: 5.7.2
+Tested up to: 5.8
 Text Domain: a3-lazy-load
 Domain Path: /languages
 License: GPLv2 or later
@@ -31,7 +31,7 @@
 
 define( 'A3_LAZY_LOAD_KEY', 'a3_lazy_load' );
 define( 'A3_LAZY_LOAD_PREFIX', 'a3_lazy_load_' );
-define( 'A3_LAZY_VERSION', '2.4.6' );
+define( 'A3_LAZY_VERSION', '2.4.7' );
 define( 'A3_LAZY_LOAD_G_FONTS', false );
 
 use \A3Rev\LazyLoad\FrameWork;

admin/admin-init.php

@@ -228,7 +228,7 @@ public function admin_settings_page( $page_data = array() ) {
 							$tab_data = $tab;
 						}
 						echo ' ' . esc_attr( sanitize_title( $tab['name'] ) );
-						echo '">' . $tab['label'] . '</a>';
+						echo '">' . esc_html( $tab['label'] ) . '</a>';
 					}
 
 					do_action( $this->plugin_name . '-' . $current_page . '_settings_tabs' );
@@ -281,15 +281,15 @@ public function admin_settings_tab( $current_page = '', $tab_data = array()  ) {
 			$separate_text = '';
 			$activated_first_subtab = false;
 			foreach ( $subtabs as $subtab ) {
-				echo '<li>' . $separate_text . '<a href="#' . trim( $subtab['name'] ) . '" class="';
+				echo '<li>' . $separate_text . '<a href="#' . trim( esc_attr( $subtab['name'] ) ) . '" class="';
 				if ( $current_subtab == '' && $activated_first_subtab === false ) {
 					echo 'current';
 					$activated_first_subtab = true;
 					$current_subtab = $subtab['name'];
 				} elseif ( $current_subtab == $subtab['name'] ) {
 					echo 'current';
 				}
-				echo '">' . $subtab['label'] . '</a></li>' . "\n";
+				echo '">' . esc_html( $subtab['label'] ) . '</a></li>' . "\n";
 
 				$separate_text = ' | ';
 			}